Error message using Disk Utility

Okay, my System Preferences is not showing up, so I ran the Disk Utility and this is the error message I got:
Volume Macintosh HD was corrupt and needs to be repaired.
Error: This disk needs to be repaired...then use Disk Utility to repair the disk.
What do I do? Do I reinstall Mac OS X Snow Leopard or is this a whole other issue? Do I take it in to get checked out? Can I fix this without taking it in? HELP!

What you need to do is repair the disk using your install disk (after you make sure that you've backed up your important data or have a current Time Machine backup):
insert install disk and hold down C key while restarting
once booted from the install disk, go past the languages, and then up to Menu bar - Utilities. Open Disk Utility and run repair disk. If it says "repaired", you're done. If not, run it again until you get the repaired dialog. You can then restart from your internal disk, eject the install CD and you're all set.
If Disk Utility can't repair it, you'd need a more powerful application or it could be other things - we'll wait with that until after you've run the repair function.

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After getting the dreaded gray/blue screen, I tried to run disk repair on the internal disk. I got an error message saying "Disk Utility can't repair this disk and restore your backed-up files. The volume Macintosh HD could not be verified completely

After getting the dreaded gray/blue screen, I tried to run disk repair on the internal disk. I got an error message saying "Disk Utility can't repair this disk and restore your backed-up files. The volume Macintosh HD could not be verified completely." What do I do now? This is an iMac and I'm running 10.6.8.

Clean Install of Snow Leopard
Be sure to make a backup first because the following procedure will erase
the drive and everything on it. See below for how to clone a drive.
     1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
         with your computer. Insert the disc into the optical drive and restart the computer.
         After the chime press and hold down the "C" key. Release the key when you see
         a small spinning gear appear below the dark gray Apple logo.
     2. After the installer loads select your language and click on the Continue
         button. When the menu bar appears select Disk Utility from the Utilities menu.
         After DU loads select the hard drive entry from the left side list (mfgr.'s ID and drive
         size.) Click on the Partition tab in the DU main window. Set the number of
         partitions to one (1) from the Partitions drop down menu, click on Options button
         and select GUID, click on OK, then set the format type to MacOS Extended
         (Journaled, if supported), then click on the Apply button.
     3. When the formatting has completed quit DU and return to the installer. Proceed
         with the OS X installation and follow the directions included with the installer.
     4. When the installation has completed your computer will Restart into the Setup
         Assistant. Be sure you configure your initial admin account with the exact same
         username and password that you used on your old drive. After you finish Setup
         Assistant will complete the installation after which you will be running a fresh
         install of OS X. You can now begin the update process by opening Software
         Update and installing all recommended updates to bring your installation current.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
You may be able to backup your data if you have an erased external drive you can use. Before you do the above but after you have opened Disk Utility you can try to clone your drive:
Clone using Restore Option of Disk Utility
1. Open Disk Utility.
2. Select the destination volume from the left side list.
3. Click on the Restore tab in the DU main window.
4. Select the destination volume from the left side list and drag
       it to the Destination entry field.
5. Select the source volume from the left side list and drag it to
      the Source entry field.
6. Double-check you got it right, then click on the Restore button.
Destination means the external backup drive. Source means the internal startup drive.
Now this will only work if the drive is accessible and can be cloned by Disk Utility. Otherwise, you would need to access your drive from another Mac that you can connect via Firewire - Target Disk Mode.

HT2711 I used the "repair disk utility" to see why my computer is running slow but it gives me an error message saying, "disk utility can't repair this disk, and restore your backed up files. My computer was running slow and taking some time to load page

I haven't used my computer in a month, so when I turned it on, I saw it was running slow. The circle that is used to load the page kept coming up and it took sometime for things to load up. I tried to go Into safe mode, and it worked, but I know your limited on what you can do in that world. I also tried to repair the disk but it kept giving me an error message. How can I resolve this problem?

Time Machine is a back up you have to set up to back up before there is a problem like a hard drive failure.
It is possible to recover files from a failed drive, but it is an expensive proposition.
There is a faint hope that an app like Disk Warrior or TechTool Pro might repair the drive. You could try making an appointment at an Apple store and ask a technician there to take a look... the diagnosis will not cost you.
http://www.apple.com/retail/geniusbar/

Can't install OS 10.4 on 10.2.8 G4, error message in disk utility

I bought 10.4 to upgrade from 10.2.8 on my G4. Apple said I had all the system requirements. Have 28.0 GB capacity, 13.5 GB available. Format is Mac OS Extended. Have 640 MB and 450 MHz. When it said error try again, I tried several times and then ran disk repair. Message as follows: "Underlying task reported failure on exit. Invalid extent entry. Volume check failed. 1 HFS volume checked. 1 volume could not be repaired because of an error." I need to upgrade because I bought a new printer and it won't work with 10.2.8. Please help!!!

Hi
You need to run Disk Utility from your computer's install disk. If that won't fix it then you will need either Alsoft's DiskWarrior or Micromat's TechTool Pro, one of them should fix it.
Steve

Partitioning error when using Disk Utility

To better facilitate backups, I have decided to create a dedicated partition on my external hard drive for Time Machine to use. This is a 300GB disk (don't laugh) with 116 GB of music on it (mostly in the iTunes library) plus some other original AIFF files. Disk Utility reports that there is 163 GB of free space on it. When I try to create a partition of about 100GB (or even 75) it gives me the "Partition failed with the error: No space left on device". I get this even if I just try to resize the original partition. I tried rebuilding the directory with Disk Warrior and it didn't help. If I give it a small enough partition to try- say 25 GB or so- it will work. Much above that though, and it always gives me the "No space" error.
I should mention that this disc, without any partition, was used for a while as the Time Machine backup disc. I don't remember why we stopped backing up, but I think it had something to do with running out of space.
I told Time Machine to use the (unpartitioned) disc once again as the backup disc, and it started backing up to it. I stopped it before it got too far.
Could there be files on there that I can't see that are taking up space? I did the "Erase free space" thing in Disk Utility but that didn't seem to clear out any more space. Like I said, it reports that there is 163 GB of available space.
I need to be able to Time Machine the startup drive so that I can install Snow Leopard and also re-do the Boot Camp thing so I can re-install Windows XP, as my wife will have a need to use the dark side for work starting next week. I'm trying not to spend any money, so getting another drive isn't really an option and neither is getting another partitioning utility, as they seem to run about $40-$50 dollars or so, and I can't be sure that they will work either.
Any ideas on this?
Thanks-
Val

Most likely issue is fragmentation. Clone it to another and then restore it after erasing. That will defrag the disk. BTW, TM usually needs about three or four times the size of what it's backing up. I suggest popping for another ext HD; they're relatively cheap: <$100 USD. for 500-1,000 GB.

ARDAgent error message in Disk Utility

I just got a new 27" iMac 2 months ago and when I recently ran Disk Utility to repair permissions I got this message.
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired.
What do I do about that? How do I repair it? Is it even something that needs repairing? Does 'modified' mean there is something wrong with it?

It's a normal, albeit annoying, status message and can be safely ignored.
Regards.

Error messages in Disk Utillity

Hello!
We are getting the same error messages on three different machines.
Im not able to find out what it means:
Warning: SUID-file «System/Library/PrivateFrameworks/DiskManagement.framework/Versions/A/Resources /DiskManagementTool»has been changed and will not be repaired.
We are getting the same message on:
«usr/libexec/load_hdi»
«System/Library/PrivateFrameworks/DiskManagement.framework/Versions/A/Resources/ DiskManagementTool»
«System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/Resou rces/Locum» «System/Library/PrivateFrameworks/Install.framework/Versions/A/Resources/runner »
«System/Library/PrivateFrameworks/Admin.framework/Versions/A/Resources/readconfi g»
«System/Library/PrivateFrameworks/Admin.framework/Versions/A/Resources/writeconf ig»
«usr/libexec/authopen»
«System/Library/CoreServices/Finder.app/Contents/Resources/OwnerGroupTool»
«System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAge nt»
Does anyone know what this means, what it could be caused by and how to fix it?
Any help would be greatly appreciated!
Thanks

I think most of us are getting those messages at the moment, they are nothing to worry about, hopefully Apple will sort it with the next update.

Erasing and re-titling a floppy disk using Disk Utility in OS Tiger

I am trying to erase and re-title a floppy disk using "Disk Utility." I keep getting an error message that "Disk Utility" cannot open the disk.
I'm using an external FD drive that plugs into the USB port and is recognized without the use of driver software. When the floppy disk icon appears on the desktop, and I select it, the use of "return" and typing in a new name has no effect. The floppy disk icon reappears named "Untitled."
Any suggestions?

Is the disk locked? Haven't used a floppy in quite awhile, but do remember that they had a slider that would lock it.

HT3275 I continue to get the following error message: Unable to complete back up.an error occurred while creating backup folder. It's a brand new drive. When I attempt to repair it using disk utility I get:unable to repair disk cannot unmounted

I have been trying to use time machine on a new lacie 2tb usb 2 drive for back up. I continue to get: "unable to complete backup.An error occured while creating backup folder". When I use disk utility to repair I get another error message: unable to repair disk unmountable.
Help me Obie One Canobie you are my last hope

I have confused myself with the facts! Started out keeping track of every step and every variable but have sort of lost it as we progress here. First I quit all applications then swapped connections between mouse port and backup disk port to influence possible bad connections question. Changed power outlet receptacle for the backup disk. Disabled the put-the-HD-to-sleep option. Then powered down the computerator.
Next started up computerator. Turned Time Machine ON and experienced multiple successful backups! Then I started up a few applications, Mail and Text Edit (but not Safari so far). Had a few more successes. After each backup, I used Disk Utility to verify the backup disk is still OK. This because the error about unable to unmount the backup disk seems to go hand in hand with Disk Utility finding the backup disk to be bad.
Put computer to sleep for the night. Upon starting up in the morning, and before doing anything else, I did a backup disk verification... BAD! Did a restart and verified the backup disk... OK.
Did a few Sleep-bad, Restart -OK repetitions.
It seems consistent: Sleeping the computer apparently messes up the backup disk but doing a Restart "repairs" it.
=============================
Now then, I don't understand everything I know here. Methinks that maybe keeping the HD from sleeping during lulls in activity has allowed successful backups through the day but manually putting everything to sleep for the night causes a return to the problem of spinning-back-up-too-slowly (which was explained earlier). Is there any truth in this?
I may abandon this Seagate thing for something more compatible. What's out there that we know works reliably for us?

Error message while trying to clone harddrive using Disk Utility

I've been trying to clone my MacBook Pro's harddrive in advance of installing Leopard. I've been trying to clone to a LaCie Ethernet Disk mini. It's connected to my computer with a USB cable. It does about 1/3 of the disk, then I get the following error message:
An error (2) occurred while copying. (No such file or directory)
At this point the disk cloning stops.
An advice would help, thanks.

kory wrote:
I'm trying to use Disk Utility to clone it. I have verified and repaired both the MacBook Pro HD and the external HD with Disk Utility.
*Hi Kory, Welcome (Back)* to Apple's Users Help Users Forums.
In addition to Utilities Restore, these are popular Cloners.
http://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html
Purchase at $27.95 will allow smart backups that look at the bu files and only move over new ones. It's quick at ~7 mins to change ~1 gig out of 20.
Be sure to test that the clone boots and apps behave properly.
Here are other popular cloners.
http://www.bombich.com/software/ccc.html
http://www.prosoftengineering.com/products/drivegeniusinfo.php?PHPSESSID=909c070fb2e13b35097fa9cc1340bfc0
Good Luck, JP
Message was edited by: Jpfresno "In addition to ..."

Time machine: An error occurred while copying files. The problem could be temporary. If the problem persists, use Disk Utility to repair your backup disk.

Time machine backups are failing. I've followed the instructions I found on the Time Machine troubleshooting page (http://pondini.org/TM/Troubleshooting.html) but have gotten to where I don't know what to do next.
Sequence of events:
The main error message is always:
An error occurred while copying files. The problem could be temporary. If the problem persists, use Disk Utility to repair your backup disk.
Yesterday, I opened Disk Utility and verified the disk. Got this error:
Error: This disk needs to be repaired using the Recovery HD. Restart your computer, holding down the Command key and the R key until you see the Apple logo. When the OS X Utilities window appears, choose Disk Utility.
I ran Disk Utility and repaired the hard drive. Then I manually started the backup before going to bed, figuring it was going to take a long time to run. When I got up this morning, the backup had failed with the same "could be temporary" error. I checked the log, which says:
Starting manual backup
Attempting to mount network destination URL: afp://Tery%20Griffin;[email protected]/Tery%20Griffin's%20Time%20Ca psule
Mounted network destination at mount point: /Volumes/Tery Griffin's Time Capsule using URL: afp://Tery%20Griffin;[email protected]/Tery%20Griffin's%20Time%20Ca psule
Disk image /Volumes/Tery Griffin's Time Capsule/Tery Griffin’s Computer (44).sparsebundle mounted at: /Volumes/Time Machine Backups
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
Event store UUIDs don't match for volume: Macintosh HD
Error: (-36) Applying backup protections to /Volumes/Time Machine Backups/Backups.backupdb/Tery Griffin‚Äôs Computer (44)/2014-03-05-201742.inProgress/ABB10CF2-F041-4DE5-B6AE-3C228B59ADCC
Error: (5) setxattr for key:com.apple.backupd.SnapshotStartDate path:/Volumes/Time Machine Backups/Backups.backupdb/Tery Griffin‚Äôs Computer (44)/2014-03-05-201742.inProgress/ABB10CF2-F041-4DE5-B6AE-3C228B59ADCC size:17
Error: (5) setxattr for key:com.apple.backupd.SnapshotState path:/Volumes/Time Machine Backups/Backups.backupdb/Tery Griffin‚Äôs Computer (44)/2014-03-05-201742.inProgress/ABB10CF2-F041-4DE5-B6AE-3C228B59ADCC size:2
Deep event scan at path:/ reason:must scan subdirs|new event db|
Finished scan
Found 145601 files (11.88 GB) needing backup
16.1 GB required (including padding), 620.77 GB available
Copied Zero KB of 11.88 GB, 0 of 145601 items
Copied 0 files (Zero KB) from volume Macintosh HD.
Copy stage failed with error:11
Backup failed with error: 11
Ejected Time Machine disk image: /Volumes/Tery Griffin's Time Capsule/Tery Griffin’s Computer (44).sparsebundle
Ejected Time Machine network volume.
Starting automatic backup
Attempting to mount network destination URL: afp://Tery%20Griffin;[email protected]/Tery%20Griffin's%20Time%20Ca psule
Mounted network destination at mount point: /Volumes/Tery Griffin's Time Capsule using URL: afp://Tery%20Griffin;[email protected]/Tery%20Griffin's%20Time%20Ca psule
Disk image /Volumes/Tery Griffin's Time Capsule/Tery Griffin’s Computer (44).sparsebundle mounted at: /Volumes/Time Machine Backups
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
Event store UUIDs don't match for volume: Macintosh HD
Error: (-36) Applying backup protections to /Volumes/Time Machine Backups/Backups.backupdb/Tery Griffin‚Äôs Computer (44)/2014-03-05-201742.inProgress/9F8E7957-9C50-49C3-8314-880E5203E3D9
Error: (5) setxattr for key:com.apple.backupd.SnapshotStartDate path:/Volumes/Time Machine Backups/
Does anyone know what the problem is here and what I should do?
Thanks,
Tery

You have repaired your boot drive (which is good) but have you repaired your time machine drive? I don't own a Time Capsule so I don't know if disk utility can operate on it. If it can, you should repair it as well. You may need to erase it and start a new backup. That happens to time machine volumes from time to time and is why people who are serious about their data never rely on a single source of backup.

Getting medium write error on burning a disc image using Disk utility

Have a MacBrook Pro 15 inch, circa Summer 2007, using OX 10.4.11. up until recently (as in before February) have been able to burn DVD's using Toast (message Medium Writer Error). Started getting problems where the burn failed. Thought maybe it was Toast, so I tried creating an iDVD project and tried to burn the DVD using that, and it stopped in the middle as well and then spit the disk out with no error message.
, this time I tried creating a disc image, and used disk utility to burn. The process looked like it was going to work but then failed with a message that I have a medium write error.
I have no problems burning a regular data disk on my superdrive so I am thinking it's maybe a software glitch rather than hardware. . Any thoughts, as to what could be causing this problem all of a sudden. By the way, there are other users out there, who seems to be having DVD burning problems all of a sudden, but most people suggest other media. I am using the same stack of DVD-R's from before when I had no problem.

Well, I had assumed my media was ok, since I had a spindle of DVD-R's and had used many of them successfully (until now!, ha ha).
I went out this afternoon and bought another brand (Memorex) and it successfully recorded.
So hopefully this solves my problem, I had no idea it was the media since I had used several of them before.
Thanks for your help.

Hi, I have a hard disk failure so to recover my data I am using disk utility to restore the data on an external drive while booting from a second external hard drive. When I perform the operation it gives me an input/output error and stops. Any tips?

Hi, I have a hard disk failure so to recover my data I am using disk utility to restore the data on an external drive while booting from a second external hard drive. When I perform the operation and after having selected both my destination and source drives, the operation begins but soon fails due to input/output error. If I try to create an image of the drive it gives me the same error message. Any help would be much appreciated.

Disk Utility only creates a image of the drive, so it's no help getting exactly what you want, which is your files. If the file structure is messed up or the drive is failing then it's no help.
If you have a external boot drive and you can't access the internal non-booting drive though the typical Finder and windows to transfer your files via drag and drop methods, then you need to install Data Rescue on the external boot drive and it will do as best as it can to recover your files. (works on non-encrypted/non-Filevaulted drives only)
.Create a data recovery/undelete external boot drive
Are you sure you have hard drive failure, or that OS X isn't merely not booting?
Because if the drive is working physically, then there is a host of fixes
..Step by Step to fix your Mac
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents#/

When I check my boot SSD drive using Disk Utility under Mavericks, I often get "Incorrect number of extended attributes" errors. But if I boot off an external drive and check the same SSD, no errors are reported. Is this a bug in Mavericks?

When I check my boot SSD drive using Disk Utility under Mavericks, I often get "Incorrect number of extended attributes" errors. But if I boot off an external drive and check the same SSD, no errors are reported.
This happens not just with the SSD in my Mac Mini, but with another SSD in my MacBook (both now running Mavericks). So far as I know, all of the kit I am using is in good order (despite the file corruption reports). So I am beginning to wonder if it could be due to a bug in Mavericks? Both SSD drives have been formatted to MacOS Extended (journaled) format. Should I have used a different format, I wonder?
Has anyone else encountered this issue?
Does anyone have a solution?
Or an explanation that might help my investigation of the issue?
Thanks guys,

I understand that the Corsair Force 3 is not one of the SSD drives that are supported on Apple Macs.
I did try downloading and using Trim Enabler, but the error message came up both when it was off and when it was on.
I understand that not everyone thinks Trim Enabler is a good program, though there is a new version out now, so I may give it another try.

I've been getting the error message "The disk you inserted was not readable by the computer". I can't open system preferences, disk utility, or Time Machine. I'm guessing it has something to do with my external hard drive, although it hasn't been touched.

I've been getting the error message "The disk you inserted was not readable by the computer". I can't open system preferences, disk utility, or Time Machine. I'm guessing it has something to do with my external hard drive, although it hasn't been touched lately, but I can't figure out how to solve the problem. Any suggestions? Thank you!

Thanks for your quick response. I had a look at your discussion... I tried it on a Windows machine and I thought that was compatible with ExFAT?
Therefore I need to attempt to use my external hard drive with a machine that boasts OS X 10.6.5 or above and then it should work?
Thanks

Error message using Disk Utility

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